import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from "@/components/Login.vue";
import Home from "@/components/Home.vue";

Vue.use(VueRouter)

const routes = [
  {path: "/", redirect: '/login'},
  {path: '/login', component: Login},
  {path: '/home', component: Home}
]

const router = new VueRouter({
  routes
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //to    将要访问的路径
  //from  从哪个路径来的
  //next  是一个函数，表示方形
  //next() 放行   next('/login') 强制跳转
  if (to.path === '/login') return next();
  //获取token
  const tokenStr = window.sessionStorage.getItem('token');
  if (!tokenStr) return next('/login');
  next();
})

export default router
